Archived posting to the Leica Users Group, 2007/12/22

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: [Leica] Interesting effects
From: lists at mcclary.net (Harrison McClary)
Date: Sat Dec 22 09:51:32 2007
References: <476B2F76.1080104@mcclary.net> <6af76ca00712220126ka51db4bkc4d6b89c9ae6ef33@mail.gmail.com> <476D3127.9020104@mcclary.net> <AD1A2676-A514-4F0C-A0A4-3C5530332500@comcast.net>

Yes. I under exposed each time -5. Once I made 32 exposures on the one  
frame that added up to the correct exposure.

I am sure someone who is better at math can explain the why of it  
better than I can.

Harrison McClary
http://www.mcclary.net
Sent from my iPhone

On Dec 22, 2007, at 10:01 AM, Leonard Taupier <len-1@comcast.net> wrote:

> Harrison,
>
> Does that mean when you exposed the same frame 32 times each  
> exposure was 5 stops underexposed?
>
> Len
>
>
> On Dec 22, 2007, at 10:45 AM, Harrison McClary wrote:
>
>> Getting the exposure really is very easy once you understand it.   
>> Each
>> f-stop or shutter speed change is a full stop, each stop is exactly
>> twice as much or 1/2 the amount of light.  If doing multiples you  
>> have
>> to remember to underexpose correctly for he number of multiples so:
>>
>> 2x is one stop under
>> 4x is 2 stops under
>> 8x is 3 stops under
>> 16x is 4 stops under
>> 32x is 5 stops under
>> 64x is 6 stops under and so on.
>>
>> Did I explain it well?
>>
>>
>>
>> Christopher Birchenhall wrote:
>>> Harrison
>>>
>>> Can I ask a silly question? How did you calculate the exposure?
>>>
>>> Chris B
>>>
>>
>>
>> -- 
>> Harrison McClary
>> Harrison McClary Photography
>> harrison@mcclary.net
>> http://www.mcclary.net
>> ImageStockSouth - Stock Photography
>> http://www.imagestocksouth.com
>> Tobacco Road: Personal Blog:
>> http://www.mcclary.net/blog
>>
>>
>> _______________________________________________
>> Leica Users Group.
>> See http://leica-users.org/mailman/listinfo/lug for more information
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information

Replies: Reply from alex at zabrovsky.com (Alex) ([Leica] Interesting effects)
In reply to: Message from lists at mcclary.net (Harrison McClary) ([Leica] Interesting effects)
Message from crbirchenhall at googlemail.com (Christopher Birchenhall) ([Leica] Interesting effects)
Message from lists at mcclary.net (Harrison McClary) ([Leica] Interesting effects)
Message from len-1 at comcast.net (Leonard Taupier) ([Leica] Interesting effects)